Snap



Oct. 25,v 1927. 1,646,745

J. F. CARPMILI. ET AL SNAP Filed March 22. 1927 Paieied oci. 25,1927. f

fumienfsmres JOHN ii. oANPiviiLn AND noiiiicEjG. HANCOCK, or' NEWiaiiriiirn,v coNNnc'riofU'i', AssIGNoRs To Noii'in & JuninMANUrAoTURiNscoiviPnNY, ois' NEW BRITAIN, coN- NECTICUT.

SNAP.

y Application filed .March 22,

Y This invention relates to improvements in snaps and has particularreference tosuch as may be employed for connecting a lead or leash witha dog collar or'harness,-one

object of the invention being to provide simple and etlici-ent means toprevent displacement of the spring which operates normallyto lclose thejaws of the device.

A further ob 'ect is to provide simple and l0 Veticient means to lockthe relatively movable members of a snap of the type to which theinvention relates. Y 'With these and other objects in view, theinvention consists incertain novel features of construction andcombinations of parts as hereinafter set forth andl pointed out in theclaims.

In the accompanying drawings;-4 Figurel 1 is a view illustrating anembodiment of our invention.

Figure 2 is a longitudinal sectional view with the Vdevice closed andlocked. e A

Figure 3 isa similar view showing thedevice unlocked and open, and fFigure 4 is a detail view.

The snap comprises twolevers 1 and 2 pivotally connected together at 3and formed at their forward ends to provide jaws 4' which, when closedform an overlapping joint 5. z y j At their upper or rear ends, thelevers 1 2 are provided respectively withV arms 6-'7, the arm 7 beingprovided with an elongated slot 8"through which the arm 6 passes and thelatter is provided at its free end with a cross-head 9. A spring 10 isso cooperable with the levers 1-p-2 as to maintain the jaws of thedevice normally closed.

A cross-bar 11 extends across the slot 8 near V one end thereof and atongue 12 on one end of the spring 10 engages over this` cross-bar in amanner to prevent longitudinal movement of the spring in one directionwhile longitudinal movement in the reverse direc-'k' Y tion is'prevented by the engagement of shoulders 13 on said spring withfthelever 2. `The free end of the spring 10 engages in a i groove 111 intheinner face lof the lever 1 and the sides wall of thisgioove will *pre Kcomprising p' tvvo` levers pivotally connected vent lateraldisplacementfof the spring.

i927'.v seriaiimiwie.

The leverarms'j-f'iare so interconnected 'that when vthe'snapwis closed,af'crotch 15 will be formed vand in this crotch,a locking Y device 16 isadaptedto engage lin a manner 55 This locking device may convenientlycon-y to prevent the snap from being opened.

sist of sheetmetal, (preferablyV resilient) bent lupon itself to formtwo members 17-,-18 which are provided with openings 19 for theaccommodation of the respective leverarins `6 7 and one 'of the memberslof u the lock is provided with a laterally projecting lug 20 which'overlies the cross-head 9 on the arm 6 when the device is in lockedposition, as shown in Figure 2. :The members of the lock device areprovided near ,their upper ends with holesffor the accommodation of aneye 21 and with the shank adapted to receive the lead or leash. It willbe understood that when in use,the jaws-4C loop on the collar or'harnessfor adog.v

Having fully described our invention what lwe claim "as new and desireto secure by Letters-Patent, is:; y

1. A devicek of the .character described together and formed with jawsat their for'- ward ends, a slotted` arm projectingr from one of saidlevers,l an arm projecting from lthe other lever and passingVthroughfsaid .of this eye, a loopfor ring'22ris swiveled and `will bevcaused to engagea suitable ring orVV l vcomprising two levers pivotallyconnected ing a laterally projecting lug toengage one n of said arms. Y

2. Ay device ofthe character described comprising pivotally "connected"levers` pro'- vided at ,onev end with'jaws, one of said ted arm and theother lever provided .with an arm 'passing through said .slotted armandA having ya head at its free end, and a lock device `comprisingl twomembers vhaving vlevers provided at its other end with a slot?.

openings through which said arms pass and havingla lug to engage one ofsaid arms.

3. A device'of the character described j v together and each having ajaw at one end, of said spring engaging the oppositelever one of saidlevers having a groove in its in' in the groove thereo. ner face, theother of said levers having an In testimony whereof, We have signed this10 opening, a cross-har extending across said speclcatlon.

-5 opening, and a spring disposed between the levers and having a tongueatone end en- JOHN F. CARPMILL.

. Y gaggingoverl said cross-har, the opposite end v HORACE G. HANCOCK.

